autonomous
adjective
uk/ɔːˈtɒnəməs/ usindependent and having the power to make decisions for yourself:
The company's divisions, which have been largely autonomous up to now, will be centralized under the newly appointed CEO.
The country now has 17 autonomous regions, each with a distinct culture.
See also
independent
autonomously
adverb
Managers are able to recruit casual staff autonomously, without central control.